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#ifndef MMC_QUEUE_H
#define MMC_QUEUE_H
struct request;
struct task_struct;
struct mmc_blk_request {
struct mmc_request mrq;
struct mmc_command sbc;
struct mmc_command cmd;
struct mmc_command stop;
struct mmc_data data;
};
enum mmc_blk_status {
MMC_BLK_SUCCESS = 0,
MMC_BLK_PARTIAL,
MMC_BLK_CMD_ERR,
MMC_BLK_RETRY,
MMC_BLK_ABORT,
MMC_BLK_DATA_ERR,
MMC_BLK_ECC_ERR,
MMC_BLK_NOMEDIUM,
};
enum mmc_packed_cmd {
MMC_PACKED_NONE = 0,
MMC_PACKED_WRITE,
};
struct mmc_queue_req {
struct request *req;
struct mmc_blk_request brq;
struct scatterlist *sg;
char *bounce_buf;
struct scatterlist *bounce_sg;
unsigned int bounce_sg_len;
struct mmc_async_req mmc_active;
struct list_head packed_list;
u32 packed_cmd_hdr[128];
unsigned int packed_blocks;
enum mmc_packed_cmd packed_cmd;
int packed_retries;
int packed_fail_idx;
u8 packed_num;
};
struct mmc_queue {
struct mmc_card *card;
struct task_struct *thread;
struct semaphore thread_sem;
unsigned int flags;
int (*issue_fn)(struct mmc_queue *, struct request *);
void *data;
struct request_queue *queue;
struct mmc_queue_req mqrq[2];
struct mmc_queue_req *mqrq_cur;
struct mmc_queue_req *mqrq_prev;
bool wr_packing_enabled;
int num_of_potential_packed_wr_reqs;
int num_wr_reqs_to_start_packing;
int (*err_check_fn) (struct mmc_card *, struct mmc_async_req *);
void (*packed_test_fn) (struct request_queue *, struct mmc_queue_req *);
};
extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
const char *);
extern void mmc_cleanup_queue(struct mmc_queue *);
extern void mmc_queue_suspend(struct mmc_queue *);
extern void mmc_queue_resume(struct mmc_queue *);
extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
struct mmc_queue_req *);
extern void mmc_queue_bounce_pre(struct mmc_queue_req *);
extern void mmc_queue_bounce_post(struct mmc_queue_req *);
extern void print_mmc_packing_stats(struct mmc_card *card);
#endif
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